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Finding the Fourth Proportional to 8,840.40, 13,248.45 and 6,240.30

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Solution

The fourth proportional to 8,840.40, 13,248.45 and 6,240.30 is: 9,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.40 : 13,248.45 = 6,240.30 : x
  2. Step 2: Convert to fraction form
    8,840.40/13,248.45 = 6,240.30/x
  3. Step 3: Cross multiply
    8,840.40x = 13,248.45 × 6,240.30
  4. Step 4: Simplify right side
    8,840.40x = 82,674,302.54
  5. Step 5: Solve for x
    x = 82,674,302.54/8,840.40
  6. Step 6: Final answer
    x = 9,351.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.